public static double WaterStressFactor(TreeModel treeModel)
    {
        EnvironmentParams envirParams = treeModel.EnvironmentParams;

        return(WaterStressFactor(envirParams.DailyMaxTemperature, envirParams.DailyMinTemperature,
                                 envirParams.DailyMaxRelativeHumidity, envirParams.DailyMinRelativeHumidity,
                                 envirParams.WindSpeed, SolarSim.DailyDirectIrradiance(DateTime.Now, 119, 26),
                                 treeModel.ComputeGrowthCycle(), FunctionSim.GrowthPeriodJudgment(treeModel),
                                 envirParams.WaterContent));
    }